Guns Nâ€™ Roses are rehearsing a cover of Velvet Revolverâ€™s â€œSlitherâ€ according to a new photo of guitarist Richard Fortusâ€™ gear. In addition to â€œSlither,â€ The â€˜alt.â€™ song list for the setlist also includes â€œNice Boys,â€ â€œThink About You,â€ â€œUsed to Love Her,â€ and â€œPerfect Crime.â€ Slash and Duff McKagan were members of Velvet Revolver